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Recent content by Tom001

  1. Tom001

    Are pins advanced or returned?

    I couldn't agree more, I was recently working on a program on a small clip-fitting machine, and also found that the guard locking shotbolts were referred to in the I/O list as out (but this was the locked position) and in (which was the unlocked position), confused hell out of me as I only...
  2. Tom001

    Tool changer's mechanical interface connectors?

    Harting make electrical/pnuematic modue connectors, typically we use (i believe) HAN24 size, this gives 8 modules width including polarised locating pins. Modules available include 3 way pneumatic, 16 pole signal, 3 pole power (quite high currrent rating). Not sure if these are any use for...
  3. Tom001

    long distance air lines

    The response from Freedesigner is very feasible, is it possible to place a small reciever close to the valve, we have used a design similar to this to blast dust out of filter medium, the reciever is only small (approx 10" * 4" dia) and provides a reasonably good reserve of air...
  4. Tom001

    Heating of Threaded inserts

    Hi ILJS This is probably a stupid idea but assuming you are intending to use a normal bowlfeeder to provide inserts to the robot would it be possible to install small cartridge heaters in the feeder escapement and track? As normally bowlfeeders are made from ali, could you install heating in...
  5. Tom001

    Siemens S7-224 EEPROM (retentive ?)

    Thanks Guys, All I wanted to do was retain certain default timer values that are held in VWORDS that are normally adjusted on a TD200 but i had to put an option for entering default values automatically as someone is bound to fiddle and I have used around 40 timers. Set the retentive range in...
  6. Tom001

    Extend S7 MicroWin V3.2 Demo

    I have downloaded the 60 day trial from siemens website, is there any way of extending the trial period. Ive already tried uninstalling and reinstalling the software but the time trial continues from where it left off. Any help would be most appreciated. Regards, Tom
  7. Tom001

    Testing an Actuator

    If you decide on a servo drive. DONT use a Seidel drive as we have plenty of machines fitted with these and they are nothing but trouble Regards Tom
  8. Tom001

    Regrind Dylark SMA Health risk?

    Although i am not involved on the plastic processing side of the company i work for, i have a question which im hoping someone can answer. We process large quantities of Dylark SMA/equivalent regrind material, which is full of dust. Does anyone know of any associated health risks as the...
  9. Tom001

    VB / Delphi to Siemens S7-200

    is it possible to edit/read values and set markers in a Siemens PLC, ideally S7-2## using a pc running a visual basic / borland delphi program through a PC/PPI cable? Or should i abandon the whole idea? I've had no luck so far and info is very thin on the ground [b] Regards [b]...
  10. Tom001

    laptop for interfacing various plcs

    Personally I use a Sony Vaio PCG-FX701, due to software issues i am running windows 98 (on an Athlon 1400, although only 16 colours) but this can be configured as dual boot with XP. It comes in very handy as it has RS232, ethernet and an internal modem [b] Best of luck [b] Tom ;)
  11. Tom001

    Siemens S7-224 EEPROM (retentive ?)

    If I were to fit an EEPROM to a S7 plc, how can i make my program extract vwords from the eeprom and write them to it? All i want to do is recall/write values set on a TD200 but will this actually achieve anything or is there another way of making the PLC retain the contents of certain vwords...
  12. Tom001

    Function Block Diagram Programming

    Siemens MicroWin will work with FBD, Ladder and STL so you have several choices available, personally i favour ladder You can download a 60 day trial of the software from the siemens website [b] Good Luck ;)
  13. Tom001

    Interference on T/C inputs to PLC

    Have you got any inverter drives in close proximity to the PLC/thermocouples, i had a problem once where the interference could not be eliminated from the PLC/thermocouple, i fitted ferrite rings to the motor supply instead, this seemed to cure the problem
  14. Tom001

    Injection moulding machine problem

    Hi there, I don't know if anyone is familiar with Negri Bossi injection moulding machines, if so then maybe you can help me with the following question. Where can I pick up a 24V signal to drive a relay when the press is on semi-automatic, i already know that i can use the euromap socket for...
  15. Tom001

    Finding electrical signal on Negri Bossi press

    I don't know whether this question is fitting for this category but here goes... I am currently connecting a gas injection unit to a Negri Bossi NB720 with Dimi EL control, as i do not want to waste gas I have decided to connect three relays, one of which will be from the injection solenoid...
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